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Detail specifications 12GM - Level 1

Strong two-suiters

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Two-suiters
A hand is a two-suiter if it contains: one suit of at least five cards and another of at least fourTo describe his two-suiter, the Opener must bid his 2nd suit at the 2 level
There are 3 types of two-suiter:
  The minimum two-suiter, non-forcing with 12-17HCP. This allows the responder to stay at the 2 level when returning to the opening suit.
  The reverse, forcing for a round with 17HCP or more. The second suit, bid at the 2 level, is higher-ranking than the first bidsuit. The responder is thus obliged to go to the 3 level to return to the opening suit.
  The jump reverse, game-forcing, as from about 20HCP.
SWNE
1
Pass
1
Pass
1
Pass
3
Pass
Pass
K
8
5
4
8
2
K
Q
6
3
A
J
5
Problem E4673 1 The 2nd suit bid by the Opener at the 1 level doesn't promise a strong two-suiter. He may only have 4 .
 
SWNE
1
Pass
1
Pass
2
J
9
4
A
K
J
9
5
A
K
Q
9
8
Problem E1212 1 Strong two-suiter : the Responder will be forced to bid at the 3 level in order to indicate preference for the Opener's first suit.
 
 
Strong two-suiter
A round forcing bid requires at least 17HCP .. as your Partner may only have 5
  • To bid a strong two-suiter, the lower ranked suit has to be longer than the higher-ranked suit.
  • It's not possible to bid a strong two-suiter with a 5-5... because you have to open with the more expensive suit !
  • Note that the weak two-suiter and the strong two-suiter overlap when the Opener has 17HCP.
  • If Responder has bid at the 2 level, promising at least 11HCP, a strong two-suiter can be bid with 15HCP. The point count has now been lowered.
SWNE
1
Pass
1
Pass
1NT
6
4
A
Q
9
8
9
7
A
K
10
9
5
Problem E4830 1NT It's not possible to bid CO!
2 promises at least 17HCP.
 
SWNE
1
Pass
1
Pass
2
J
9
4
A
K
J
9
5
A
K
Q
9
8
Problem E4829 2 all the conditions have been met : 18HCP and a 5 carder which is a lower-ranked suit than the 4 carder.
 
 
Important!!!
Your strength doesn't always allow you to bid your two-suiter, especially when your 5 carder is a minor suit and not a major suit... Don't lull your Partner into a false understanding about the strength of your hand.
 
Be Careful! Important rule concerning the strong two-suiter
A strong two-suiter no longer exisits if the Responder has already bid a suit higher, thus disallowing Opener to rebid his suit at the 2 level.
SWNE
1
1
2
Pass
2
9
7
3
A
Q
10
9
A
Q
8
5
7
5
Problem 20148 With this bidding sequence, Opener could have a 1st zone hand. Responder bids 2, ruling out the possibility of Opener to rebid at the 2 level. The aim of the 2 bid is to find the best contract.